Home / 1,676,869.20-2,314,121.10-912,964.68

Finding the Fourth Proportional to 1,676,869.20, 2,314,121.10 and 912,964.68

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Solution

The fourth proportional to 1,676,869.20, 2,314,121.10 and 912,964.68 is: 1,259,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,869.20 : 2,314,121.10 = 912,964.68 : x
  2. Step 2: Convert to fraction form
    1,676,869.20/2,314,121.10 = 912,964.68/x
  3. Step 3: Cross multiply
    1,676,869.20x = 2,314,121.10 × 912,964.68
  4. Step 4: Simplify right side
    1,676,869.20x = 2,112,710,829,542.75
  5. Step 5: Solve for x
    x = 2,112,710,829,542.75/1,676,869.20
  6. Step 6: Final answer
    x = 1,259,913.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.